{"id":"CVE-2026-39390","summary":"CI4MS has Stored XSS via srcdoc attribute bypass in Google Maps iframe setting","details":"CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Google Maps iframe setting (cMap field) in compInfosPost() sanitizes input using strip_tags() with an \u003ciframe\u003e allowlist and regex-based removal of on\\w+ event handlers. However, the srcdoc attribute is not an event handler and passes all filters. An attacker with admin settings access can inject an \u003ciframe srcdoc=\"...\"\u003e payload with HTML-entity-encoded JavaScript that executes in the context of the parent page when rendered to unauthenticated frontend visitors. This vulnerability is fixed in 0.31.4.0.","aliases":["GHSA-x3hr-cp7x-44r2"],"modified":"2026-07-08T08:13:02.059156159Z","published":"2026-04-08T14:29:28.500Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39390.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39390.json"},{"type":"ADVISORY","url":"https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-x3hr-cp7x-44r2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39390"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ci4-cms-erp/ci4ms","events":[{"introduced":"0"},{"fixed":"379ebb6022883c1bc01dba9db3c19ff29c46b7dd"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:ci4-cms-erp:ci4ms:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.31.4.0"},{"last_affected":"0.31.3.0"}]}}],"versions":["0.31.3.0","0.31.2.0","0.31.1.0","0.31.0.0","0.28.6.0","0.28.5.0","0.28.4.0","0.28.3.0","0.28.0.0","0.27.0.0","0.26.3.4","0.26.3.3","0.26.3.2","0.26.3.1","0.26.3.0","0.26.2.0","0.26.1.0","0.26.0.0","0.25.3.0","0.25.2.0","0.25.1.0","0.25.0.43","0.25.0.39","0.25.0.30","0.25.0.2","0.25.0.1","0.25.0.0","0.24.0.60","0.24.0.45","0.24.0.42","0.24.0.27","0.24.0.20","0.24.0.19","0.24.0.18","0.24.0.16","0.24.0.0","0.23.1.0","0.23.0.0","0.21.3.7","0.21.3.6","0.21.3.5","0.21.3.4","0.21.3.3","0.21.3.2","0.21.3.1","0.21.3","0.21.2","0.21.1","0.21.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39390.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N"}]}